Re: Guidance requested on narrowing down internal compiler error

[Gaius Mulley]

john o goyo <jog37@riddermarkfarm.ca> writes:

> Greetings, Gaius.
>
> On 2024-04-02 18:56, Gaius Mulley wrote:
>> Hi John,
>>
>> I've git pushed the m2 trace flag -fm2-debug-trace=all,quad,line,token
>> to help track down the ICE
>>
>> regards,
>> Gaius
>
> I tried tracing all.  Output is voluminous, so I piped it to a file. 
> Here is an extract therefrom:
>
> ./MCPublic.def:39:    Statset = SET OF Compilerstatus;
> ./MCPublic.def:39:    Statset = SET OF Compilerstatus;
> ./MCPublic.def:39:    ^^^^^^^
> ./MCPublic.def:39:4051
> ./MCPublic.def:39:    Statset = SET OF Cotoken: 3
> token: 4
> token: 5
> token: 6
> token: 7
> [...]
> token: 4085
> token: 4086
> token: 4087
> token: 4088
> token: 3
> token: 4
> token: 5
> token: 6
> token: 7
> [...]
> token: 1358
> token: 1359
> token: 1360cc1gm2: internal compiler error: not implemented yet
> 0x6d35cf m2linemap_internal_error
> /home/build/opt/gcc/src/gcc-git/gcc/m2/gm2-gcc/m2linemap.cc:253
>
> As this does not seem to help me, I searched for occurrences of "not
> implemented yet" and found them in
> gcc/m2/gm2-compiler/SymbolTable.mod.  Adding some procedure context,
> the problem seems to be in the procedure GetScope.  The function
> GetPsym returns something not found in the CASE statement.

Hi John,

the compiler is falling over at token 1360 (or just after).  Does the
top of the file have the tokens listed?  If it does what was the
token sequence, say 1340..1360 ?

It would be interesting to see what declarations (and their
dependencies) it was using (or could be using from that region of code)

regards,
Gaius